Titlebook: Environmental and Space Electromagnetics; Hiroshi Kikuchi (Professor, URSI Commission E Chai Book 1991 Springer-Verlag Tokyo 1991 communic

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Advances in 3D Biometric Systems,trokes. That means, the signatures detected by N-S and E-W magnetic loops are often different from each other. We believe this feature is due to the inclination of the channel of positive lightning return strokes. The video pictures which were recorded simultaneously with magnetic fields confirm our surmise.

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